HP MSR2000/3000/4000 Router Series MPLS Configuration Guide

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• The VPN instance determines which routes it can accept and redistribute according to the
import-extcommunity in the route target.
• The VPN instance determines how to change the route target attributes for routes to be advertised
according to the export-extcommunity in the route target.
To configure route related attributes for a VPN instance:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter VPN instance view or
IPv6 VPN view.
• Enter VPN instance view:
ip vpn-instance
vpn-instance-name
• Enter IPv6 VPN view:
address-family ipv6
Configurations made in VPN
instance view apply to both IPv4
VPN and IPv6 VPN.
IPv6 VPN prefers the
configurations in IPv6 VPN view
over the configurations in VPN
instance view.
3. Configure route targets.
vpn-target vpn-target&<1-8>
[ both | export-extcommunity |
import-extcommunity ]
By default, no route targets are
configured.
4. Set the maximum number of
routes supported.
routing-table limit number
{ warn-threshold | simply-alert }
The default setting depends on the
device model. For more
information, see the command in
MPLS Command Reference.
Setting the maximum number of
routes for a VPN instance can
prevent the PE from storing too
many routes.
5. Apply an import routing
policy.
import route-policy route-policy
By default, all routes matching the
import target attribute are
accepted.
Make sure the routing policy
already exists. Otherwise, the
device does not filter received
routes.
For information about routing
policies, see Layer 3—IP Routing
Configuration Guide.
6. Apply an export routing
policy.
export route-policy route-policy
By default, routes to be advertised
are not filtered.
Make sure the routing policy
already exists. Otherwise, the
device does not filter routes to be
advertised.
For information about routing
policies, see Layer 3—IP Routing
Configuration Guide.